*{
    padding: 0;
    margin: 0;
}
a{text-decoration: none;}
img {vertical-align: top;}
ul,ol,li {list-style-type: none;}
.clear {
    clear: both;
}
.clearfix:after {
    content: "";
    display: block;
    clear: both;
}
body{
    background: url(./image/背景.gif);
    background-repeat: repeat-y;
    /* background-size: 100%;  */
    max-width: 1000px;
    background-attachment: scroll;
    margin: 10px auto;
}
.header1 {
    text-align: left;
}
.header1>img {
    vertical-align: bottom;
    width: 100px;
    height: 100px;
}
.header1>strong {
    font-size: 50px;
    font-weight: bold;
    font-style: italic;
    font-family: "宋体";
    text-align: center;
    color: #00ffff;
}
nav {
    display: block;
    text-align: center;
    padding-bottom: 20px;
}
nav>a {
    padding: 20px;
    margin: 10px;
    color: blue;
    font-weight: bold;
    border-radius: 20px;
}
nav>a:hover {
    color: #fff;
    background-color: orange;
    box-shadow: 0 0 10px red;
}
hr {
    border: 3px dashed cornflowerblue;
    margin-bottom: 10px;
}
section {
    margin-bottom: 200px;
}
section>h2 {
    text-align: left;
    padding:10px;
    width: 100px;
    background-color: aqua;
    border-radius: 20px;
    margin-bottom: 50px;
}
section>h2>a {
    color: green;
    text-align: center;
}
section>article>header {
    text-align: center;
}
section>article>header>h3 {

    margin-bottom: 10px;
    font-size: 20px;
    font-weight: bold;
}
.content {
    text-align: center;
}
.content>p {
    font-weight: bold;
    line-height: 25px;
}
section>article>details>summary {
    text-align: left;
    font-weight: bold;
    font-weight: bold;
    font-size: 30px;
    color: rgb(13, 194, 249);
    margin-bottom: 20px;
}
.show {
    width: 1000px;
    height: 200px;
}
.show>.img {
    float: left;
}
.show>.img>img {
    width: 100px;
    height: 100px;
}
section>h1{
    padding: 20px;
    background-color: antiquewhite;
    border-radius: 20px;
    font-size: 20px;
    line-height: 0px;
    width: 320px;
}
section>.pic {
    width: 400px;
    margin: 0 0 0 600px;
    text-align: right;
    border-radius: 20px;
    padding: 10px;
    background-color: pink;
}